Alright, let's work through 1525 times 9864 step by step
1525 × 9864 = 9864 × (1525)
+ 9864 × 5 which equals 49320
+ 9864 × 20 which equals 197280
+ 9864 × 500 producing 4932000
+ 9864 × 1000 that equals 9864000

= 15042600
